How do I find the value of X and Y? I have the angle formed by the point P and I know that the radius of the circle is 1000. How do I calculate this? Appreciate!

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migrated from mathematica.stackexchange.com Nov 26 '17 at 15:38

This question came from our site for users of Wolfram Mathematica.

  • 2
    $\begingroup$ Wrong site. This site deals with the software Mathematica. You have asked about a homework problem in trigonometry. Start drawing triangles. $\endgroup$ – Hugh Nov 26 '17 at 14:00
  • $\begingroup$ Do you know the sine and cosine functions? You are changing from polar to Cartesian coordinates. Do you know how to do that? $\endgroup$ – Ross Millikan Nov 26 '17 at 15:40

By definition:

$$\sin66^\circ = \frac{y}{r}$$

$$\cos66^\circ = \frac{x}{r}$$

Use a calculator to calculate $\sin66^\circ$, $\cos 66^\circ$.

$$0.91354545764 = \frac{y}{r}$$

$$0.40673664307 = \frac{x}{r}$$


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